CVE-2026-51821
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSQL Injection vulnerability in Shenzhou Shihan Video Conference System v.1.0 allows a remote attacker to execute arbitrary code via the /user/getUserLogin endpoint
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceSQL injection vulnerability in the /user/getUserLogin endpoint of Shenzhou Shihan Video Conference System v1.0 allows remote attackers to inject malicious SQL queries that can lead to arbitrary code execution on the underlying database server.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Shenzhou Shihan Video Conference System is deployedReview your application inventory, check installed software lists, or inspect the web server's hosted applications to identify if the Shenzhou Shihan Video Conference System is runningAffected if The system is NOT Shenzhou Shihan Video Conference System v1.0
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Verify the exact version of the video conference systemAccess the system's admin panel, about page, or version information endpoint; alternatively, check the application binaries or installation files for version metadataAffected if The installed version is NOT v1.0 (note: only v1.0 is listed as affected)
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Confirm the /user/getUserLogin endpoint is accessibleCheck web server configuration, URL routing rules, or attempt a direct HTTP request to the endpoint path /user/getUserLogin to verify it is exposedAffected if The endpoint /user/getUserLogin is not accessible or does not exist in the deployment
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Identify if the login function uses direct SQL query handlingInspect the application source code or binary associated with the user login module; look for string concatenation or dynamic query building in the user authentication logicAffected if The login endpoint uses parameterized queries or ORM frameworks (which would not be vulnerable)
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Verify the system accepts external network connectionsCheck firewall rules, network ACLs, or access control lists to determine if the application server accepting requests from untrusted networksAffected if The application is only accessible from fully trusted internal networks with no exposure to potentially malicious external users
You are affected if you are running Shenzhou Shihan Video Conference System v1.0 with the /user/getUserLogin endpoint exposed and the login function uses direct SQL query handling without parameterized statements
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement parameterized queries or prepared statements in the login endpoint to neutralize SQL injection vectors, then conduct thorough penetration testing to verify the fix and identify any similar vulnerabilities in other endpoints.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-51821 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-51821 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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